Dell Precision Tower 3420 Owner's Manual page 48

Table 22. Audio
Feature
Integrated
Table 23. Network
Feature
Integrated
Table 24. System information
Feature
System chipset
DMA channels
Interrupt cevels
BIOS chip (NVRAM)
Table 25. Expansion bus
Feature
BustType
Bus speed
Table 26. Cards
Feature
PCI
Mini Tower
Small Form Factor
PCI Express x4
Mini Tower
Small Form Factor
PCI-Express x16
Mini Tower
Small Form Factor
48
Specification
Two Channel High Definition Audio
Specification
Intel I219LM Ethernet capable of 10/100/1000 Mb/s
communication
Specification
Intel C236 chipset
Two 8237 DMA controllers with seven independently
programmable channels
Integrated I/O APIC capability with 24 interrupts
16 MB
Specification
PCIe gen3 (x16), USB 2.0, and USB 3.0
PCI Express:
• x4-slot each direction speed – 4GB/s
• x16-slot each direction speed – 16 GB/s
SATA: 1.5 Gbps, 3.0 Gbps, and 6 Gbps
Specification
Up to one full-height card
None
Up to one full-height card
Up to one low-profile card
Up to two full-height cards
Up to one low-profile cards